As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SJU - FLT 71 - DURING SERVICE CHECK, FOUND L-1 DOOR EMERGENCY OPERATION DAMPER PRESSURE AT ZERO. REPLACED DIAPHRAGM IN PRECUSSION MECHANISM AND SERVICED IAW AMM 52-10-14. OPERATIONAL AND LEAK CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (M)